Professor Des Cox:

Absolutely. That is really important. The object of all this is to help people get off smoking tobacco. We believe we should be looking to the proven, safe and effective measures rather than something like e-cigarettes, where the evidence is not there. As I mentioned earlier, there is a review that shows that these are harmful. The degree of this harm and whether it is short or long-term are still unknown. We must remember that it took about 30 years for us to really realise the true impact of what happened with tobacco products.